2. Use Figure 4.11º to sketch a typical seismogram in which the first P wave arrives 3 minutes ahead of the first S wave and 8 minutes ahead of the first surface wave. Label each type of wave. Figure 4.11 Illustration to accom- pany Question 2. minute Time

Applications and Investigations in Earth Science (9th Edition)
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Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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---

### Seismogram Analysis and Wave Identification

#### Assignment:
1. Use **Figure 4.11** to sketch a typical seismogram in which the first P wave arrives 3 minutes ahead of the first S wave and 8 minutes ahead of the first surface wave. Label each type of wave.

#### Figure Description:
**Figure 4.11**: Illustration to accompany Question 2.

![Seismogram Illustration](#)
*Description*: The figure features a graph designed for sketching seismograms. Vertical red lines divide the graph into 1-minute intervals, as indicated by a labeled marker below the graph. The horizontal axis represents time, with an arrow pointing to the right to denote the progression of time.

**Steps**:
1. **Identify Time Intervals**: Note the time intervals on the horizontal axis, marked in 1-minute increments.
2. **Plot P Wave**: Sketch the first P wave arriving at a designated point along the time axis.
3. **Mark S Wave**: Plot the first S wave 3 minutes after the P wave.
4. **Indicate Surface Wave**: Plot the first surface wave 8 minutes after the P wave.
5. **Label Waves**: Clearly label each plotted wave (P wave, S wave, Surface wave).

**Visualization Tip**:
To visualize, you might place the P wave at a noticeable peak, the S wave 3 minutes to the right of the P wave, and the surface wave 5 minutes to the right of the S wave (total 8 minutes from P wave).

---
Transcribed Image Text:--- ### Seismogram Analysis and Wave Identification #### Assignment: 1. Use **Figure 4.11** to sketch a typical seismogram in which the first P wave arrives 3 minutes ahead of the first S wave and 8 minutes ahead of the first surface wave. Label each type of wave. #### Figure Description: **Figure 4.11**: Illustration to accompany Question 2. ![Seismogram Illustration](#) *Description*: The figure features a graph designed for sketching seismograms. Vertical red lines divide the graph into 1-minute intervals, as indicated by a labeled marker below the graph. The horizontal axis represents time, with an arrow pointing to the right to denote the progression of time. **Steps**: 1. **Identify Time Intervals**: Note the time intervals on the horizontal axis, marked in 1-minute increments. 2. **Plot P Wave**: Sketch the first P wave arriving at a designated point along the time axis. 3. **Mark S Wave**: Plot the first S wave 3 minutes after the P wave. 4. **Indicate Surface Wave**: Plot the first surface wave 8 minutes after the P wave. 5. **Label Waves**: Clearly label each plotted wave (P wave, S wave, Surface wave). **Visualization Tip**: To visualize, you might place the P wave at a noticeable peak, the S wave 3 minutes to the right of the P wave, and the surface wave 5 minutes to the right of the S wave (total 8 minutes from P wave). ---
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